[ydl-gen] using ./configure to generate 64 bit share libraries(ydl4.0.91) SOLVED

[Sanders, Rob M.]

Hey folks,
  Finally got it (again).  I was poking around the docs on ld and stumbled 
across the -m option and the lightning bolt hit (again).  The incantation
to ./configure needs to be './configure CC='cc -m64' LD='ld -melfppc64'
and everything works out just fine.
  One of these days I'll get around to writing a personal blog/notebook with
these bits of trivia......

                                 Rob


-----Original Message-----
From: yellowdog-general-bounces at lists.terrasoftsolutions.com on behalf of Sanders, Rob M.
Sent: Wed 4/26/2006 8:43 AM
To: Discussion List for General Yellow Dog Linux User Topics
Subject: [ydl-gen] using ./configure to generate 64 bit share libraries(ydl4.0.91)
 
Greetings everyone,
  I've been trying to re-create something I did almost 8 months ago and
am about ready to pull my hair out.  I lost the directory that had how I
did it due to a corrupt 
tarball backup during a repartition...
  I am trying to build the tecla libraries
(http://www.astro.caltech.edu/~mcs/tecla/index.html)
as a 64 bit shared library under YDL 4.0.91.  It uses the gnu configure
utilities to build the makefiles and such.  Last fall I had figured out
how to issue the ./configure command so that 
it would build a 64 bit shared library instead of a 32 bit library, but
I haven't been able to remember how I did this.  I'm using the 1.6.0
version of libtecla.
  The gcc compiler shipped with 4.0.91 is a bi-arch capable compiler
(can build 32 or 64 bit 
code  [ -m32 or -m64]), but the ./configure command is *only* generating
linking code references 32 bit libraries, even though it will build the
object code as 64 bit. I've tries using CC='cc -m64', CC='cc'
CFLAGS='-m64', as well as LD='cc -m64'.
  Has anyone else fought the battle with ./configure to have it generate
64 bit libraries? 
Any suggestions would be *muchly* appreciated.....

						Thanks...

	
Rob
 
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